Carpet-stretcher.



'PATENTED MAR; 26, 1907. 1 o. H. LAMSGN. CARPET STRETGHBR. APPLICATIONFILED AUG. 9. 1905.

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C. H. LAMSON.

CARPET STRETCHER,- APPLICATION FILED Alle. s, 1905.

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CARPET-STRETCHER.

Specification of Letters Patent.

Patented March 26, 1907.

Application filed August 9, 1905. Serial No. 273,447.

Be it known that I, OrmRLns I-I. LAMsoN, a citizen of the United States,residing at Elston, in the county of Oole, State of Missouri, haveinvented certain new and useful Improvements in Oarpet-Stretchers, and Id hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to carpet-stretchers.

One object of the invention is to provide an exceedingly light, simple,inexpensive, durable, and efficient carpet-stretcher.

Another object resides in the provision of a carpet-stretcher embodyingsuch characteristics that any person may readily stretch the carpet forlaying purposes.

A still further object of the invention is to provide a foldablecarpet-stretcher, whereby the carpet may be readily stretched uponpressure being brought to bear upon the stretcher in its unfoldedposition.

In the drawings, Figure 1 is a bottom plan view of my invention lockedin its folded position. Fig. 2 is a side elevation of the invention inits unfolded position. Fig, 3 is a transverse section of one of theheads. Fig. 4 is a transverse sectional view on the line 4 4 of Fig. 1,showing the boltin elevation. Fig. 5 is a detail view of one of thestraps.

Referring now more particularly to the accompanying drawings, thereference character 1 designates an elongated head, of Wood or any othersuitable material, with its lower outer longitudinal edge beveled, asindicated by the reference character 2. The inner face of this head 1 ispreferably flat, in which is formed parallel transverse recesses 3 and4, each of which receives the reduced ends 5 of arms 6 and 7,respectively, the arms 6 and 7 being iirmly connected to the head vbysuitable braces 8, each brace being provided with a foot 9, engaging therear flat face of the head 1 and pierced by a suitable fastener 10.

. The opposite end of each brace is provided with a foot 11, engagingthe corresponding' face of the corresponding arms 6 and 7, the feet 11being pierced by a suitable fastener 12, whereby the said arms 6 and 7are iirmly secured with respect to the head 1. Each arm 6 and 7 isprovided with a series of perforations 13 and 14, respectively, for apurpose presently explained, and between certain of these perforationsthe oppositely-disposed legs 15 and 16 of U-shaped straps 17 are securedto the outer faces of the corresponding arms 6 and 7 by means ofsuitable fasteners 17. It will thus be understood that the arms 6 and 7are arranged in parallel spaced relation.

The reference character 18 designates a head, the same in proportionsand form as the aforesaid head 1, and is provided upon its inner flatface with a single recess 19, which receives a reduced end or tongue 2Oor a member 21, provided with a reduced elongated extremity forming anarm 22 of such width as to fit snugly between the inner faces of thearms 6 and 7. This arm 22 is provided with a series of perforations 23,corresponding in number to the perforations of each of the arms 6 and7., the perforations of all of the arms being designed for registrationfor the reception of a pivot-bolt 24, provided with a screw-threaded end25 for the reception of a cap-nut 26, it being understood. that the boltmay be engaged interchangeably with different sets of aliningperforations. Braces 27 and 28, each provided with feet 29 and 30, areprovided for engagement of said feet with the corresponding faces of themember 21 of the arm 22 and the head 18, as shown. The member 21 byreason of the reduced extremity resulting in the arm 23 hasoppositely-disposed shoulders 21, which meet the extremities 23 of thecorresponding arms 6 and 7, these extremities being rounded, as clearlyshown in the drawings. Each head 1 and 18 is provided upon all of itsfaces, save the inner flat faces, with a metallic or other reinforcingmaterial 33, secured thereto by means of suitable fasteners 34. Thismaterial 33 is preferably of sheet metal and is designed to protect theheads 1 and 18 from wear, the material 33 of each head 1 and 18 beingprovided with a series of perforations 35, designed to receive pins 36,the head 37 of each pin being arranged between the inner face of thematerial 33 and the beveled edges of the respective heads, whereby thepins are held firmly in proper position for engagement of their outerpointed ends 38 with the carpet to be stretched. Of course before thereinforcing material 33 is placed upon the respective heads thecarpet-engaging pins 36 are passed through the perforations of thematerial.

In the use of my invention I will direct attention to Fig. 1 of thedrawings, wherein it IOO ITO

will be seen that the arm 22 is moved upon the pivot-bolt 24 in suchmanner as to be lifted out of the space between the arms 6 and 7, andwhereby the arms 6 and 7 may be in their parallel relation at an angleto the angle of the plane of the arm 22. l/Vhen the arms are disposed inthe manner stated, the carpet-pins 36 are in engagement with the carpet,when pressure upon the arms directly over the pivot-bolt 24 will causethe extremities of the respective arms to move downwardlyuntil the arm22 engages between the arms 6 and 7, the bight portions of the straps 17serving to limit the downward movement of the arm 22 within the spacebetween the arms 6 and 7. In order to then prevent accidentaldisengagement or a tilting movement of the arm 22 with respect to thearms 6 and 7, or vice versa, l secure upon the arm 6 intermediate itsends, by means of a suitable pivotpin 39, a latch 40, whose longer endis designed to be swung over the upper face of the arm 22 and the arm 7,thereby locking all three arms against movement with respect one toanother. It is obvious, therefore, that this latch 40 may be used whenthe device is not in service.

What is claimed is- In a carpet-stretcher, the combination with a headhaving recesses therein, of spaced parallel arms engaged in therecesses, straps secured to the arms at one side thereof and bridgingthe space between the arms, a second head having a recess therein, amember having a tongue engaged in the recess of the second head andhaving a reduced elongated arm movably disposed between the iirst-namedarms, a pivot-bolt engaged in the several arms for pivotal movement ofthe iirst-named arms with respect to the secondnamed arm, said armshaving longitudinal series of alning perforations adapted forinterchangeable reception of the pvot-bolt, a latch pivoted to one ofthe lirst-named arms at the side opposite from the straps and movableinto and out of position to extend across the second-named arm,carpet-engaging pins carried by the heads, and braces secured one ateach end of each head, the braces of the first-named head being securedalso one to each of the first-named arms, and the braces of the secondhead being secured to the member.

In testimony whereof I aliX my signature in presence of two witnesses.

CHARLES H. LAMSON.

Witnesses:

EMA L. NoTT, CHARLES URHAN.

